The Chilean Blue Eagle, also known as the Black-chested
Buzzard-eagle, the Chilean Eagle and the Grey Eagle-buzzard
(sometimes in Buteo genus), is
found over most of South America.
There are two sub-species, the Western (australis, shown here), slightly smaller and with fine dark bars shown on white underside ranges from Colombia through the Andes to Tierra del Fuego in the south, and the Eastern nominate sub-species, slightly larger with plainer white underside ranging from Brazil through to NE Argentina.